Table of Contents
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Contents
5.2.2 SRAM Circuit Board.................................................................................................. 5-4
5.3 Start-Up Sequence ............................................................................................ 5-5
5.3.1 Overview..................................................................................................................... 5-5
5.3.2 Start-Up Sequence ................................................................................................... 5-5
5.4 Actions when HDD Error................................................................................... 5-9
5.4.1 E602 Details............................................................................................................... 5-9
5.5 Image Processing ............................................................................................ 5-13
5.5.1 Overview of the Flow of Image Data .................................................................... 5-13
5.5.2 Reader Input Image Processing ........................................................................... 5-14
5.5.3 Printer Output Image Processing ......................................................................... 5-15
5.5.4 Compression, Decompression, and Edit Processing Blocks ........................... 5-16
5.6 Flow of Image Data ......................................................................................... 5-17
5.6.1 Flow of Image Data for Copier Functions............................................................ 5-17
5.6.2 Flow of Image Data for Box Functions................................................................. 5-18
5.6.3 Flow of Image Data for SEND Functions ............................................................ 5-19
5.6.4 Flow of Image Data for Fax Transmission Functions........................................ 5-20
5.6.5 Flow of Image Data for Fax Reception Functions.............................................. 5-21
5.6.6 Flow of Image Data for PDL Functions................................................................ 5-22
5.7 Parts Replacement Procedure....................................................................... 5-23
5.7.1 Main Controller Box ................................................................................................ 5-23
5.7.2 Main Controller PCB (main) .................................................................................. 5-23
5.7.3 Main Controller PCB (sub R-A) ............................................................................. 5-27
5.7.4 Main Controller PCB (sub PDRM-A) .................................................................... 5-28
5.7.5 Main Controller PCB (sub SJ-A) ........................................................................... 5-28
5.7.6 Main Controller PCB (sub LAN-A) ........................................................................ 5-29
5.7.7 Main Controller PCB (sub RB-A) .......................................................................... 5-30
5.7.8 SRAM PCB .............................................................................................................. 5-31
5.7.10 Image Memory (SDRAM) .................................................................................... 5-32
5.7.11 HDD ......................................................................................................................... 5-33
5.7.12 Controller Fan ........................................................................................................ 5-34
Chapter 6 Original Exposure System
6.1 Construction........................................................................................................ 6-1
6.1.1 Specifications, Control Mechanisms, and Functions........................................... 6-1
6.1.2 Major Components.................................................................................................... 6-2
6.1.3 Construction of the Control System ....................................................................... 6-4
6.1.4 Reader Controller PCB............................................................................................. 6-5
6.2 Basic Sequence ................................................................................................. 6-6
6.2.1 Basic Sequence of Operation at Power-On .......................................................... 6-6
6.2.2 Basic Sequence of Operation in Response to a Press on the Start Key ......... 6-7
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